1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=WITHOUTATEXIT %s 2 // RUN: %clang_cc1 -triple x86_64-apple-darwin -fregister-global-dtors-with-atexit -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=CXAATEXIT --check-prefix=WITHATEXIT %s 3 // RUN: %clang_cc1 -triple x86_64-apple-darwin -fno-use-cxa-atexit -fregister-global-dtors-with-atexit -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=ATEXIT --check-prefix=WITHATEXIT %s 4 5 // WITHOUTATEXIT: global_ctors{{.*}}@A{{.*}}@C 6 // WITHOUTATEXIT: @llvm.global_dtors = appending global [5 x { i32, void ()*, i8* }]{{.*}}@B{{.*}}@E{{.*}}@F{{.*}}@G{{.*}}@D 7 // WITHATEXIT: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }]{{.*}}i32 65535, void ()* @A,{{.*}}i32 65535, void ()* @C,{{.*}}i32 123, void ()* @__GLOBAL_init_123,{{.*}}i32 789, void ()* @[[GLOBAL_INIT_789:__GLOBAL_init_789.[0-9]+]],{{.*}}i32 65535, void ()* @__GLOBAL_init_65535, 8 // WITHATEXIT-NOT: global_dtors 9 10 // CHECK: define void @A() 11 // CHECK: define void @B() 12 // CHECK: define internal void @E() 13 // CHECK: define internal void @F() 14 // CHECK: define internal void @G() 15 // CHECK: define i32 @__GLOBAL_init_789(i32 %{{.*}}) 16 // CHECK: define internal void @C() 17 // CHECK: define internal void @D() 18 // CHECK: define i32 @main() 19 // CHECK: define internal i32 @foo() 20 // WITHOUTATEXIT-NOT: define 21 22 // WITHATEXIT: define internal void @__GLOBAL_init_123(){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions" 23 // CXAATEXIT: call i32 @__cxa_atexit(void (i8*)* bitcast (void ()* @E to void (i8*)*), i8* null, i8* @__dso_handle) 24 // CXAATEXIT: call i32 @__cxa_atexit(void (i8*)* bitcast (void ()* @G to void (i8*)*), i8* null, i8* @__dso_handle) 25 // ATEXIT: call i32 @atexit(void ()* @E) 26 // ATEXIT: call i32 @atexit(void ()* @G) 27 28 // WITHATEXIT: define internal void @[[GLOBAL_INIT_789]](){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions" 29 // CXAATEXIT: call i32 @__cxa_atexit(void (i8*)* bitcast (void ()* @F to void (i8*)*), i8* null, i8* @__dso_handle) 30 // ATEXIT: call i32 @atexit(void ()* @F) 31 32 // WITHATEXIT: define internal void @__GLOBAL_init_65535(){{.*}}section "__TEXT,__StaticInit,regular,pure_instructions" 33 // CXAATEXIT: call i32 @__cxa_atexit(void (i8*)* bitcast (void ()* @B to void (i8*)*), i8* null, i8* @__dso_handle) 34 // CXAATEXIT: call i32 @__cxa_atexit(void (i8*)* bitcast (void ()* @D to void (i8*)*), i8* null, i8* @__dso_handle) 35 // ATEXIT: call i32 @atexit(void ()* @B) 36 // ATEXIT: call i32 @atexit(void ()* @D) 37 38 int printf(const char *, ...); 39 40 void A() __attribute__((constructor)); 41 void B() __attribute__((destructor)); 42 43 void A() { 44 printf("A\n"); 45 } 46 47 void B() { 48 printf("B\n"); 49 } 50 51 static void C() __attribute__((constructor)); 52 53 static void D() __attribute__((destructor)); 54 55 static __attribute__((destructor(123))) void E() { 56 } 57 58 static __attribute__((destructor(789))) void F() { 59 } 60 61 static __attribute__((destructor(123))) void G() { 62 } 63 64 // Test that this function doesn't collide with the synthesized constructor 65 // function for destructors with priority 789. 66 int __GLOBAL_init_789(int a) { 67 return a * a; 68 } 69 70 static int foo() { 71 return 10; 72 } 73 74 static void C() { 75 printf("A: %d\n", foo()); 76 } 77 78 static void D() { 79 printf("B\n"); 80 } 81 82 int main() { 83 return 0; 84 } 85